Missing Steam valve, where can I purchase one?

you will never get one that way sorry . the problem is these come out of china and are marked with a brand name , after the factory has made its run and changes style thats it NO MORE PARTS . i would try E BAY buy a whole unit used , cheep. and then you have your valve and a lot of extra parts for the next problem you run into ...... just be sure the one your bidding on is the SAME is yours , a lot of the look a lot alike but are not , good luck